Diastolic Dysfunction- Anaesthesiologist’s Dilemma!

Left ventricular systolic dysfunction is well recognized and ably managed by anesthesiologists. Left ventricular diastolic function needs to be reckoned as well, every single time anaesthesia is planned in a patient with cardiac disease. This article emphasizes why one should take cognizance of diastolic dysfunction during perioperative anaesthesia management. Diastolic dysfunction(DD) is the inefficiency of the left ventricle to allow filling at lower atrial pressures.[1] In other words, it is the abnormal relaxation during diastole along with the reduction in left ventricular compliance which culminates into higher filling pressures of the left ventricle.[2] It is associated with comorbid conditions such as hypertension, diabetes and atrial fibrillation. Oftentimes it is asymptomatic at rest but can manifest in stress-induced circumstances such as acute severe hypertension, tachycardia, overzealous fluid administration or arrhythmias especially atrial fibrillation.[3] Various reciprocal changes occur over time within the systolic function due to long-standing diastolic dysfunction. Also, mild to moderate diastolic dysfunction forms an independent predictor for the risk of mortality in addition to the established risk of hypertension, diabetes, coronary artery disease and advanced age.[4] It is also an independent predictor of major adverse cardiac events (MACE). (5) Most of the patients in whom anaesthesia is given for various surgical procedures have comorbidities like hypertension, diabetes, dyslipidemia, atrial fibrillation and ischemic heart disease which endure high risk for DD. They may have associated heart failure with preserved ejection fraction (HFpEF).DD can contribute to postoperative heart failure [6] and is associated with various complications in the postoperative period.[2] The act of administration of anaesthesia, mechanical ventilation and intraoperative events like tachycardia, hypertension, inordinate fluid therapy along with the overall surgic

2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
C Borrelli ◽  
P Sciarrone ◽  
F Gentile ◽  
N Ghionzoli ◽  
G Mirizzi ◽  
...  

Abstract Background Central apneas (CA) and obstructive apneas (OA) are highly prevalent in heart failure (HF) both with reduced and preserved systolic function. However, a comprehensive evaluation of apnea prevalence across HF according to ejection fraction (i.e HF with patients with reduced, mid-range and preserved ejection fraction- HFrEf, HFmrEF and HFpEF, respectively) throughout the 24 hours has never been done before. Materials and methods 700 HF patients were prospectively enrolled and then divided according to left ventricular EF (408 HFrEF, 117 HFmrEF, 175 HFpEF). All patients underwent a thorough evaluation including: 2D echocardiography; 24-h Holter-ECG monitoring; cardiopulmonary exercise testing; neuro-hormonal assessment and 24-h cardiorespiratory monitoring. Results In the whole population, prevalence of normal breathing (NB), CA and OA at daytime was 40%, 51%, and 9%, respectively, while at nighttime 15%, 55%, and 30%, respectively. When stratified according to left ventricular EF, CA prevalence decreased from HFrEF to HFmrEF and HFpEF: (daytime CA: 57% vs. 43% vs. 42%, respectively, p=0.001; nighttime CA: 66% vs. 48% vs. 34%, respectively, p<0.0001), while OA prevalence increased (daytime OA: 5% vs. 8% vs. 18%, respectively, p<0.0001; nighttime OA: 20 vs. 29 vs. 53%, respectively, p<0.0001). When assessing moderte-severe apneas, defined with an apnea/hypopnea index >15 events/hour, prevalence of CA was again higher in HFrEF than HFmrEF and HFpEF both at daytime (daytime moderate-severe CA: 28% vs. 19% and 23%, respectively, p<0.05) and at nighttime (nighttime moderate-severe CA: 50% vs. 39% and 28%, respectively, p<0.05). Conversely, moderate-severe OA decreased from HFrEF to HFmrEF to HFpEF both at daytime (daytime moderate-severe OA: 1% vs. 3% and 8%, respectively, p<0.05) and nighttime (noghttime moderate-severe OA: 10% vs. 11% and 30%, respectively, p<0.05). Conclusions Daytime and nighttime apneas, both central and obstructive in nature, are highly prevalent in HF regardless of EF. Across the whole spectrum of HF, CA prevalence increases and OA decreases as left ventricular systolic dysfunction progresses, both during daytime and nighttime. Funding Acknowledgement Type of funding source: None


2001 ◽  
Vol 102 (1) ◽  
pp. 9-14 ◽  
Author(s):  
Suneel TALWAR ◽  
Iain B. SQUIRE ◽  
Russell J. O'BRIEN ◽  
Paul F. DOWNIE ◽  
Joan E. DAVIES ◽  
...  

The glycoprotein 130 (gp130) signalling pathway is important in the development of heart failure. Cardiotrophin-1 (CT-1), a cytokine acting via the gp130 pathway, is involved in the process of ventricular remodelling following acute myocardial infarction (AMI) in animals. The aims of the present study were to examine the profile of plasma CT-1 following AMI in humans, and its relationship with echocardiographic parameters of left ventricular (LV) systolic function. Serial measurements of plasma CT-1 levels were made in 60 patients at 14-48h, 49-72h, 73-120h and 121-192h following AMI and at a later clinic visit. LV function was assessed using a LV wall motion index (WMI) score on admission (WMI-1) and at the clinic visit (WMI-2). Compared with values in control subjects (29.5±3.6fmol/ml), the plasma CT-1 concentration was elevated in AMI patients at 14-48h (108.1±15.1fmol/ml), 49-72h (105.2±19.7fmol/ml), 73-120h (91.2±14.9fmol/ml) and 121-192h (118.8±22.6fmol/ml), and at the clinic visit (174.9±30.9 fmol/ml) (P < 0.0001). Levels were higher following anterior compared with inferior AMI. For patients with anterior AMI, CT-1 levels were higher at the clinic visit than at earlier times. WMI-1 correlated with CT-1 at all times prior to hospital discharge (P < 0.05). On best subsets analysis, the strongest correlate with WMI-1 was CT-1 level at 49-72h (R2 = 20%, P < 0.05). In conclusion, plasma levels of CT-1 are elevated soon after AMI in humans and rise further in the subsequent weeks in patients after anterior infarction. CT-1 measured soon after AMI is indicative of LV dysfunction, and this cytokine may have a role in the development of ventricular remodelling and heart failure after AMI.


Blood ◽  
2016 ◽  
Vol 128 (22) ◽  
pp. 2457-2457
Author(s):  
Luigi Mancuso ◽  
Angela Vitrano ◽  
Massimiliano Sacco ◽  
Andrea Mancuso ◽  
Antonietta Ledda ◽  
...  

Abstract Background Heart failure (HF) is the most important cause of death in Thalassemia Major (TM) patients, and results from iron overload which determines progressive systolic dysfunction of the left ventricle. T2* Magnetic Resonance Imaging (CMR) is the only non-invasive tool for detecting and quantifying myocardial iron storage.We had observed that a large number of Thalassemia patients recently observed at our Centre develops a different form of HF, with evidence of diastolic dysfunction and often in absence of systolic dysfunction. Methods We evaluated the clinical, electrocardiographic, echocardiographic and Doppler data of 16 adult Thalassemia patients with HF observed at our Centre between 2008 and 2016, together with the data obtained by means of T2* CMR. All statistical analyses were descriptive. Results are provided as means ± standard deviations, medians with interquartile ranges (IQR), and percentages. Results Table 1 describes demographics, T2* and Echo-Doppler data of 16 TM patients. The 31.2% were females and the mean age was 44.2±5.7 years.One patient presented systolic dysfunction of the left ventricle whereas the others had echocardiographic and Doppler evidence of diastolic dysfunction. Systolic dysfunction of the right ventricle was also found in 81.25% of cases. Furthermore, 30.75% of cases had T2* values consistent with significant risk for heart failure (≤14 ms), whereas the others had normal values. In 68.75% of the cases ECG showed inversion of T wave beyond V2 lead, and low voltages. Conclusions Most of the patients with heart failure recently observed at our Centre had diastolic dysfunction of the left ventricle with normal systolic function, and impairment of systolic function of the right ventricle, and normal values of cardiacT2*. In 68.75% of cases ECG showed inversion of T wave beyond V2 lead and low voltages. Limitations of this study can be summarizes in: a) small number of cases (16 pts); b) Evidence of normal values of T2* values in most patients does not exclude an iron overload in precedent years. However patients with HF due to systolic dysfunction usually show low or very low values; c) a possible bias of this study may be linked to the Centre where this study has been performed. Our Centre is the Reference Centre of Sicilian Region for Thalassemia patients. This implies the possibility of a very strict surveillance of chelation therapy with frequent evaluations of the data of T2* in order to improve at best the treatment with chelation therapy. It is possible that this, at least in part, might prevent the onset of the classical form of systolic dysfunction of the left ventricle due to iron overload, and that in these patients, differently than in patients followed up in other centres, different forms of HF noit linked to cardiac iron overload may occur: that is heart failure preserved ejection fraction (HFpEF), with prevalent left ventricular diastolic dysfunction. Table 1. Demographics, Echo-Doppler and T2* data Table 1. Demographics, Echo-Doppler and T2* data Disclosures No relevant conflicts of interest to declare.


2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Piercarlo Ballo ◽  
Irene Betti ◽  
Giuseppe Mangialavori ◽  
Leandro Chiodi ◽  
Gherardo Rapisardi ◽  
...  

Management of patients with peripartum cardiomyopathy (PPCM) is still a major clinical problem, as only half of them or slightly more show complete recovery of left ventricular (LV) function despite conventional evidence-based treatment for heart failure. Recent observations suggested that bromocriptine might favor recovery of LV systolic function in patients with PPCM. However, no evidence exists regarding its effect on LV diastolic dysfunction, which is commonly observed in these patients. Tissue Doppler (TD) is an echocardiographic technique that provides unique information on LV diastolic performance. We report the case of a 37-year-old white woman with heart failure (NYHA class II), moderate LV systolic dysfunction (ejection fraction 35%), and severe LV diastolic dysfunction secondary to PPCM, who showed no improvement after 2 weeks of treatment with ramipril, bisoprolol, and furosemide. At 6-week followup after addition of bromocriptine, despite persistence of LV systolic dysfunction, normalization of LV diastolic function was shown by TD, together with improvement in functional status (NYHA I). At 18-month followup, the improvement in LV diastolic function was maintained, and normalization of systolic function was observed. This paper might support the clinical utility of bromocriptine in patients with PPCM by suggesting a potential benefit on LV diastolic dysfunction.


2009 ◽  
Vol 150 (45) ◽  
pp. 2060-2067 ◽  
Author(s):  
András Nagy ◽  
Zsuzsanna Cserép

Diabetes mellitus, a disease that has been reaching epidemic proportions, is an important risk factor to the development of cardiovascular complication. The left ventricular diastolic dysfunction represents the earliest pre-clinical manifestation of diabetic cardiomyopathy, preceding systolic dysfunction and being able to evolve to symptomatic heart failure. In early stages, these changes appear reversible with tight metabolic control, but as pathologic processes become organized, the changes are irreversible and contribute to an excess risk of heart failure among diabetic patients. Doppler echocardiography provides reliable data in the stages of diastolic function, as well as for systolic function. Combination of pulsed tissue Doppler study of mitral annulus with transmitral inflow may be clinically valuable for obtaining information about left ventricular filling pressure and unmasking Doppler inflow pseudonormal pattern, a hinge point for the progression toward advanced heart failure. Subsequently we give an overview about diabetes and its complications, their clinical relevance and the role of echocardiography in detection of diastolic heart failure in diabetes.


Circulation ◽  
2008 ◽  
Vol 118 (suppl_18) ◽  
Author(s):  
Jay Pandhi ◽  
Willem J Kop ◽  
John S Gottdiener

Left ventricular systolic dysfunction (LVSD) is an important predictor of outcomes in heart failure (HF) patients. Adverse effects of LVSD in individuals without heart failure, also known as asymptomatic LVSD (ALVSD), are not well established in the elderly. This study reports outcomes and evaluates the impact of LVSD in elderly subjects with ALVSD. The Cardiovascular Health Study is a multicenter longitudinal cohort study designed to assess cardiac risk factors and outcomes in a community-based population 65 years and older. The incidence of HF and mortality was evaluated in those with ALVSD with a median follow-up of 11.9 years. Cox regression was used, adjusting for demographics and cardiac risk factors, and stratified by severity of LVSD. Incident HF occurred in 39.2% of those with ALVSD vs. 22.8% in those without LVSD (RR = 1.51, CI = 1.25–1.84). Impaired ejection fraction (EF) (< 45%) was associated with more than twice the risk of incident HF than normal systolic function (RR = 2.21; CI 1.67–2.91). Individuals with borderline EF (45–55%) did not have an increased risk of incident HF (RR = 1.21; CI 0.94–1.56). The severity of LVSD was also predictive of mortality: borderline LVSD RR = 1.23 (CI 1.04–1.47) for all-cause mortality and 1.60 (CI 1.26–2.03) for cardiac death; impaired LVSD RR = 1.54 (CI 1.24–1.92) for all-cause mortality and RR = 2.12 (CI 1.60–2.81) for cardiac death. ALVSD is associated with increased risk of heart failure, death, and cardiac death when compared to normal systolic function. Furthermore, the degree of systolic dysfunction has a significant impact in predicting these outcomes in elderly individuals with ALVSD.


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